Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to ac5abc0f7b596f327062c462adfade23647062cc
  - Merge "replace type specification for vnf async client"
  - replace type specification for vnf async client

    replace type specification for vnf async client classes

    Issue-ID: SO-1490

    Change-Id: I96d96aa863a8cdfc5d92adc4675600fdc9dd5568
    Signed-off-by: Sindhuri.A <arcot.sindhuri@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 7edfbac..ac5abc0 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 7edfbac402214a59f6a305e4c6f6706dbcc6f169
+Subproject commit ac5abc0f7b596f327062c462adfade23647062cc